1. Department of Archaeology and Natural History School of Culture, History and Languages ANU College of Asia and the Pacific Australian National University Canberra ACT 0200 Australia
2. Center for Integrative Conservation Xishuangbanna Tropical Botanical Garden Chinese Academy of Sciences Yunnan 666303 China
3. School of Earth Sciences The University of Queensland Brisbane Qld 4072 Australia
4. School of Archaeology and Anthropology Australian National University Canberra ACT 0200 Australia